The Bold Style symbolizes modern, product-oriented design. This includes design schools like material design, flat design, modern design, app design, etc.
The Business Style style is used whenever you want to transport a clean message and focus on facts. It is especially used when your are adressing a traditional clientele with your slides.
The Emotional Style makes broad use of large, emotional pictures and photographs. It is a very graphic design style that works best when you combine it with crisp, precise content without lengthy text passages.